Christian Philosophizing and Conservatives for Gay Marriage

As I was perusing through my blogroll today, I came across the following thought-provoking post by my friend Lauren, a former evangelical and self-avowed agnostic, who also has a terrific writing style and a very interesting blog. In her most recent entry, Lauren wonders whether or not it is possible for a Christian to properly philosophize, because of her or his assurance of having all the answers to life's questions. We began an interesting debate on her blog, during which she mentioned some arguments postulated by Sam Harris, author of The End of Faith and Letter to a Christian Nation. Lauren sent me a link to a blog debate by Harris and Andrew Sullivan, which fleshes out many of Harris's key arguments against religiosity and faith in America. I was intrigued by Sullivan's responses, and did some research to figure out more about this character and his book, The Conservative Soul. I found some very interesting articles, including one that presents a conservative (I guess it would be Sullivan's brand of 'neo-Conservativism) argument for gay marriage: Here Comes the Groom: A Conservative Case for Gay Marriage. Anyone who is at my university, I claim this book first and am checking it out ASAP! Sullivan is a writer for the Alantic Monthly, and maintains a blog that I'll be adding to my blogroll. He also wrote a very insightful article for the Times, entitled 'When Seeing is Not Believing'. Has anyone else come across Sullivan that could offer some ideas or responses about or to his work?